A Breakdown is a synopsis of the entire script including complete character descriptions of each role, the key Creative and Production team members, location, start dates, rate of pay, union affiliations and any special notes or requests.
Casting instructs us where they want their Breakdowns released. Agents and Managers use the Breakdown to submit the appropriate Talent and Actors use the Breakdown to determine if they are interested in a project and to assist them in preparing their auditions.